View source for Krita/GSoC2010

= Pentalis =
TODO to the midterm
* <del>Fixing the current glitch with duplicated hatching</del>
* <del>Pressure sensitivity to make lines thicker </del>
* <del>Adding a mode without sub-pixel precision</del>
* <del>Making an intuitive GUI to let  </del>
* <del>Pressure sensitivity to make more lines</del>
* <del>Ability to make crosshatching</del>
* <del>Enabling pressure sensitivity to create crosshatching</del>

Roadmap:
* <del>Finish the GUI containing all the widgets for a finished brush.</del> <del>Finished rc1, Evaluating design.</del> <del>Finish the GUI containing all widgets for a final release; crosshatching will have a prototype simplified interface.</del>
* <del>Clean all the code: 4 space indentation, use self-explaining long names</del>, <del>change class names to the definite ones</del>, <del>eliminate all chalk brush residuals</del>.
* <del>Link GUI. Only a window left.</del>
* <del>Implement the functions described by the GUI, from easiest to hardest or from most important to least important.</del>
* (<del>Most important: Scratch off algorithm</del> not so important, the algorithm would slow down both development and the user's computer by a huge amount, this may not be implemented; <del>stylus setting sensitivity</del> Implemented; <del>Hard: interval based settings</del> <del>this was obsoleted by a discussion in IRC</del> I'm reconsidering this, contrary to what others may think, the need for a DISCRETE list of settings controlled by the GUI is real and not perceived, the tool can only reach its full potential in that way).

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Currently doing:
* <del>Considering how to approach impasto.</del>
* <del>Finishing the hatching brush.</del> <del>Fixing small remaining bugs.</del>
* <del>Intoxicating with yoghurt</del>
* <del>Heading to sleep after a long day of doing interesting things and learning, see today's commit 00:02, 27 June 2010 (PDT)</del>
* <del>Linking the last bits of GUI  11:39, 21 June 2010 (PDT)</del>
* <del>Linking the GUI 05:19, 18 June 2010 (PDT)</del>
* <del>Learning how to link new GUI widgets to the general config widget: the basic curve dialog and the BrushTip dialog.  07:08, 17 June 2010 (PDT)</del>


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Roadmap for Impasto:
* Bumpmapping algorithm: Allow multiple light sources.
* Test point: take a greyscale Krita layer acting as a heightmap and bumpmap it.
* Create a heightmap-enabled colorspace.
* Bumpmapping algorithm: Allow illumination to work with different color spaces (use simple, hackish, temporary solution).
* Test point: take a Krita layer with a heightmap-enabled colorspace, save the impasted projection.
* Create or patch a paintop to be able to write to the heightmap ("The fifth channel").
* Integrate the class into Krita runtime through a hidden or visible experimental layer, celebrate with champagne when it works.
* Create a basic GUI to let the user control light sources and impasto behavior.
* Device a method to allow all relevant paintops to write to the impasto channel (This point may be extended later).
* Pretty Gimmick: Find the perfect heightmap to cause circles to look like semispheres and the impasto settings to make them look like droplets of water or a similar good-looking effect. Ask LukasT to make the spray brush able to create such droplets.
* Bumpmapping algorithm: Speed enhancements.
** Optimize cross products.
** Optimize colorspace interaction.